package day04;
import java.util.Scanner;
public class Guessing {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int num = (int)(Math.random()*1000+1);
        System.out.println(num);
        /*
        System.out.println("猜吧！");
        int guess = scan.nextInt();
        while (guess!=num){
            if(guess>num){
                System.out.println("猜大了");
            }else {
                System.out.println("猜小了");
            }
            System.out.println("猜吧！");
            guess = scan.nextInt();
        }
        System.out.println("恭喜你猜对了！");

         */
        //变量的作用域./范围
        //从声明开始到包含它最近的大括号结束
        //变量的重名问题：
        //作用域重叠时，变量不能重名
        int guess;
        do {
            System.out.println("猜吧！");
            guess = scan.nextInt();
            if(guess>num){
                System.out.println("猜大了");
            }else if(guess<num){
                System.out.println("猜小了");
            }
        }while (guess!=num);
        System.out.println("恭喜你猜对了！");

        }
    }

